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PatchSiren cyber security CVE debrief

CVE-2026-92476 Linux CVE debrief

A vulnerability in the Linux kernel's crypto: keembay component has been addressed. The issue involves initializing completion before requesting an IRQ. This vulnerability may impact Linux kernel developers and maintainers who need to assess exposure and apply patches. The vulnerability was resolved through patches provided by the Linux kernel maintainers. Linux kernel developers and maintainers, as well as teams responsible for maintaining and updating Linux kernel versions, should assess exposure and apply patches or updates to address the vulnerability.

Vendor
Linux
Product
Unknown
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-17
Original CVE updated
2026-10-19
Advisory published
2026-09-17
Advisory updated
2026-10-19

Who should care

Linux kernel developers and maintainers, as well as teams responsible for maintaining and updating Linux kernel versions, should assess exposure and apply patches or updates to address the vulnerability.

Why it matters

The vulnerability in the Linux kernel's crypto: keembay component requires patching or updates to prevent potential issues. Linux kernel developers and maintainers should assess exposure and apply patches or updates to address the vulnerability.

  • Verify patch application and update Linux kernel versions to prevent potential issues
  • Assess exposure and prioritize patching for affected Linux kernel versions
  • Monitor Linux kernel advisories and update documentation accordingly

Technical summary

The Linux kernel's crypto: keembay component has a vulnerability related to initializing completion before requesting an IRQ. The issue has been addressed through patches provided by the Linux kernel maintainers. The vulnerability was resolved by initializing the completion before requesting the IRQ, as the sibling OCS HCU and ECC drivers already do. This change ensures that the completion is properly initialized before the IRQ handler is registered, preventing potential issues. Linux kernel developers and maintainers should review and apply patches or updates to address the vulnerability.

Defensive priority

Apply patches or updates from the Linux kernel maintainers to address the vulnerability.

Recommended defensive actions

  • Review and apply patches or updates from the Linux kernel maintainers
  • Assess exposure and prioritize patching for affected Linux kernel versions
  • Monitor Linux kernel advisories and update documentation accordingly
  • Verify patch application and update Linux kernel versions to prevent potential issues
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details about the vulnerability, including its description and affected versions. However, the corpus does not establish specific exploitation or impact, requiring verification from official sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-92476 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-92476

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-92476 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-92476

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • crypto: keembay - Initialize completion before requesting IRQ

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/92xxx/CVE-2026-92476.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://git.kernel.org/stable/c/a3ffced8be1555f283680065c3b87a19f5ab9097

    Supplemental source

  • Source reference

    Unverified legacy reference

    URL: https://git.kernel.org/stable/c/4ce407055ae9d37f46a3c6f05eb27198b354d287

    Supplemental source

  • Source reference

    Unverified legacy reference

    URL: https://git.kernel.org/stable/c/d52a15c4559b69805bc69bf4ad9e16bbf6480d52

    Supplemental source

  • Source reference

    Unverified legacy reference

    URL: https://git.kernel.org/stable/c/f8970ee9e315c9e2258ae8914d5fb32b1039d2f6

    Supplemental source

  • Source reference

    Unverified legacy reference

    URL: https://git.kernel.org/stable/c/7efb51a5893b22003a679d088b7794be2ccd6c32

    Supplemental source

  • Source reference

    Unverified legacy reference

    URL: https://git.kernel.org/stable/c/5aae80dcec0748b4ed61daace2ad8b12082261f2

    Supplemental source

  • Source reference

    Unverified legacy reference

    URL: https://git.kernel.org/stable/c/fce20289dd622cc7ab78d72c8a979a9f8b7cb10e

    Supplemental source

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.